− 13 q 9 / 2 − q 7 / 2 + 16 q 7 / 2 + 4 q 5 / 2 − 20 q 5 / 2 − 8 q 3 / 2 + 20 q 3 / 2 + 1 q 15 / 2 − 3 q 13 / 2 + 7 q 11 / 2 + 13 q − 18 q {\displaystyle -{\frac {13}{q^{9/2}}}-q^{7/2}+{\frac {16}{q^{7/2}}}+4q^{5/2}-{\frac {20}{q^{5/2}}}-8q^{3/2}+{\frac {20}{q^{3/2}}}+{\frac {1}{q^{15/2}}}-{\frac {3}{q^{13/2}}}+{\frac {7}{q^{11/2}}}+13{\sqrt {q}}-{\frac {18}{\sqrt {q}}}}
